moisture barrier

基本解释

In a proper sandwich, the cheese is adjacent to the bread to create a moisture barrier against the lettuce.
一個郃格的三明治，芝士要緊貼著麪包，這樣會提供給生菜一個有水分的屏障。
That way you’ll be able to seal this type of outside wall with a continuous moisture barrier in cooler climate zones.
如果你在涼爽氣候區，這樣做可以幫你在外牆上形成一個連續的防潮層。
Because oil is like a lock moisture barrier, if this layer protective film disappears, then the water will soon be air-dry the external environment.
因爲油脂猶如鎖住水分的一道屏障，如果這層保護膜消失不見，那麽，水分很快會被外界環境風乾。